package com.hp.ssmp.interceptor;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.hp.ssmp.util.R;
import com.hp.ssmp.util.StatusCode;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.concurrent.TimeUnit;

/**
 * 处理跨域
 */
public class CrossOriginInterceptor implements HandlerInterceptor {

    @Autowired
    private RedisTemplate redisTemplate;

    //请求前
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //设置响应数据格式及编码
        response.setContentType("application/json;charset=UTF-8");

        //跨域处理
        String origin = request.getHeader("Origin");
        response.setHeader("Access-Control-Allow-Origin", origin);
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "content-type,x-requested-with,Authorization,token");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        return true;
    }

    //请求后
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}
